40% of what number is 78?
A) 195
B) None of the above
C) 109.2
D) 197
E) 31.2

195

Step-by-step explanation:

Of means multiply and is means equals

40% * number = 78

Change to decimal form

.40 * number = 78

divide each side by .40

.40 number/ .40 = 78/ .40

number =195

.632

step-by-step explanation:

6 * 1/10 = 3/5

3*0.01 = 0.03

3/5 + 0.03 = .63

2*0.002 = .002

.63 + 0.002 = .632

the 1st digit is in the 100s n its 1

step-by-step explanation:

3,589÷18 = 199.389

so the first digit of the quotient is in the 100s n its 1